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Ticket Resolution Summary Owner Reporter
#12861 worksforme general protection fault: 0000 [#1] SMP Ken Preslan
Description

I'm running VBox on a 64-bit Ubuntu 12.04 host. It's running three VMs of the same version of Ubuntu. There are two ethernet interfaces. One VM is bridged onto both. The other two are bridged onto just eth0.

I've been running VBox in the configuration for years with no problems. After I upgraded to 4.3.8, I've had the machine spontaneously reboot twice. This evening, I had it panic with the attached message in the logs. The stack back-trace was incomplete.

I'll try to install kdump and hopefully get a core and better information next time.

I'm not sure this is VBox's fault, but right now it seems like the most likely culprit.

Is there any other information I should provide?

#3245 fixed gdb doesn't work in Linux guest -> fixed in SVN/2.1.4 Dummy000001
Description

Environment. Host: WinXP/32 SP2 on AMD Athlon64 x2 (old CPU, no fancy VM bits supported). Guest: Debian (Sid) 32 bit.

Starting from VBox 2.1.0, "gdb" under Linux guest can't set breakpoints. That means essentially one can't start program under debugger.

I have strace'd gdb and attaching output.

This is apparently the call where gdb fails:

ptrace(PTRACE_SETREGS, 2390, 0, 0xbfa5aaf8) = -1 EIO (Input/output error)

gdb works fine with 2.0.6.

#13227 fixed gcc-4.8 build failure - pc bios/bios_console.c:195:1:error: bp cannot be used in asm here => Fixed in SVN Peter
Description

build with gcc-4.8 fails:

x86_64-pc-linux-gnu-gcc -m32 -c -O2 -ffreestanding -ffunction-sections -march=i386 -fomit-frame-pointer -fstrength-reduce 
-falign-jumps=1 -falign-loops=1 -Os -falign-functions=1 -mpreferred-stack-boundary=2 -mregparm=3 -mrtd -freg-struct-return
 -fshort-wchar -Ui386 -Ulinux -include compiler.h -Wall -W -Wformat-nonliteral -fno-stack-protector -nopie -fno-dwarf2-cfi
-asm -Wno-address -I/var/tmp/portage/app-emulation/virtualbox-4.3.14/work/VirtualBox-4.3.14/src/VBox/Devices/PC/ipxe/src -
I/var/tmp/portage/app-emulation/virtualbox-4.3.14/work/VirtualBox-4.3.14/src/VBox/Devices/PC/ipxe/src/include -I/var/tmp/p
ortage/app-emulation/virtualbox-4.3.14/work/VirtualBox-4.3.14/src/VBox/Devices/PC/ipxe/src/arch/x86/include -I/var/tmp/por
tage/app-emulation/virtualbox-4.3.14/work/VirtualBox-4.3.14/src/VBox/Devices/PC/ipxe/src/arch/i386/include -I/var/tmp/port
age/app-emulation/virtualbox-4.3.14/work/VirtualBox-4.3.14/src/VBox/Devices/PC/ipxe/src/arch/i386/include/pcbios -I/var/tm
p/portage/app-emulation/virtualbox-4.3.14/work/VirtualBox-4.3.14/include -I/var/tmp/portage/app-emulation/virtualbox-4.3.1
4/work/VirtualBox-4.3.14/out/linux.amd64/release -DVBOX -DVBOX_OSE -DVBOX_WITH_64_BITS_GUESTS -DVBOX_WITH_DEBUGGER -DRT_OS
_LINUX -D_FILE_OFFSET_BITS=64 -DRT_ARCH_AMD64 -D__AMD64__ -DVBOX_WITH_HARDENING -DRTPATH_APP_PRIVATE=\"/usr/share/virtualb
ox\" -DRTPATH_APP_PRIVATE_ARCH=\"/usr/lib64/virtualbox\" -DRTPATH_SHARED_LIBS=\"/usr/lib64/virtualbox\" -DRTPATH_APP_DOCS=
\"\" -DARCH=i386 -DPLATFORM=pcbios -DVERSION_MAJOR=1 -DVERSION_MINOR=0 -DVERSION_PATCH=0 -DVERSION=\"1.0.0+\" -D_build_id=
0xaffeaffe -DOBJECT=memmap -Wp,-MD,/var/tmp/portage/app-emulation/virtualbox-4.3.14/work/VirtualBox-4.3.14/out/linux.amd64
/release/obj/iPxeBaseBin/src/arch/i386/firmware/pcbios/memmap.o.dep -Wp,-MT,/var/tmp/portage/app-emulation/virtualbox-4.3.
14/work/VirtualBox-4.3.14/out/linux.amd64/release/obj/iPxeBaseBin/src/arch/i386/firmware/pcbios/memmap.o -Wp,-MP -o /var/t
mp/portage/app-emulation/virtualbox-4.3.14/work/VirtualBox-4.3.14/out/linux.amd64/release/obj/iPxeBaseBin/src/arch/i386/fi
rmware/pcbios/memmap.o /var/tmp/portage/app-emulation/virtualbox-4.3.14/work/VirtualBox-4.3.14/src/VBox/Devices/PC/ipxe/sr
c/arch/i386/firmware/pcbios/memmap.c
/var/tmp/portage/app-emulation/virtualbox-4.3.14/work/VirtualBox-4.3.14/src/VBox/Devices/PC/ipxe/src/arch/i386/firmware/pc
bios/bios_console.c: In function ‘bios_putchar’:
/var/tmp/portage/app-emulation/virtualbox-4.3.14/work/VirtualBox-4.3.14/src/VBox/Devices/PC/ipxe/src/arch/i386/firmware/pc
bios/bios_console.c:195:1: error: bp cannot be used in asm here
 }
 ^

According to gcc upstream this is bug in code: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58758

There are fixes here: https://bugs.gentoo.org/show_bug.cgi?id=500064

Please review and apply patches.

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